Fair enough, good luck, invest in a macbook pro and you should be good for a few years. I know Roy loves his and Cyfr has a macbook IIRC.
Are you going to be doing some freelancing whilst at Uni? You could start doing wedding/ portrait stuff as a bit of spending in the meantime as you have already taken teh step away from being a wage slave and if it takes off you can always bin teh uni course